First Confirmed Case of Canine Mortality Due to Dihydroanatoxin-a in Central Texas, USA.

ABSTRACT: The frequency of dogs becoming ill or dying from accidental exposure to cyanotoxins, produced by cyanobacteria, is increasing throughout the United States. In January and February of 2021, two dogs died and five dogs became ill after swimming in Lake Travis, central Texas, USA; one deceased dog (C₁) was subjected to pathological testing. Algal materials, sediment samples, zebra mussel viscera, periphyton from shells, as well as fluids and tissues from the digestive tract of C₁ were investigated for the following cyanotoxins: anatoxin-a, homoanatoxin-a, dihydroanatoxin-a (dhATX), cylindrospermopsin, saxitoxin, and microcystins. Necropsy results of C₁ indicated neurotoxicosis with significant levels of dhATX in the duodenum tissues (10.51 ng/g dry weight (DW)

SUBMITTER: Fredrickson A 

PROVIDER: S-EPMC10467149 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature